Title:
開脚式打ち込み釘
Document Type and Number:
Japanese Patent JP6913360
Kind Code:
B2
Abstract:
To provide an openable driving nail capable of increasing restoration elastic force in a closing direction and increasing friction force occurring between a soft building material and a nail shaft, to improve pull-out strength resistance.SOLUTION: An openable driving nail 1 has a pair of nail shafts 2 whose cross section is formed into a semicircular shape, and a belt-like thin plate 3, wherein the belt-like thin plate 3 is interposed between the nail shaft 2 arrayed so that their flat surface sides 2a are opposite to each other, the nail shafts 2 and the belt-like thin plate 3 are connected by a head part 4a, and the other end side of the nail shafts 2 is a tapered surface 2d for opening. The nail shaft 2 take the shape of curving along a lengthwise direction so that the mutual flat surface sides 2a are separate at an intermediate point in the lengthwise direction.SELECTED DRAWING: Figure 1
More Like This:
| WO/1994/011585 | JUNCTION FASTENER |
Inventors:
Takemasa Wakai
Application Number:
JP2017131383A
Publication Date:
August 04, 2021
Filing Date:
July 04, 2017
Export Citation:
Assignee:
Wakai Holdings Co., Ltd.
International Classes:
F16B15/00; E04B1/41; F16B15/04
Domestic Patent References:
| JP2005106280A | ||||
| JP57190114U | ||||
| JP2004251397A | ||||
| JP2004270918A | ||||
| JP56109410U |
Foreign References:
| US2560643 | ||||
| CN204784041U |